RESUMEN
A distinct bipartite begomovirus was isolated in northeastern Brazil infecting Macroptilium lathyroides showing symptoms of yellow mosaic. The complete genome (DNA-A and DNA-B) of the virus was cloned using rolling circle amplification and subsequently sequenced. Clones presented the typical genomic organization of a New World bipartite begomovirus. Based on the current taxonomic criteria established for the genus Begomovirus, the virus corresponds to a new species, showing highest nucleotide identity with other Brazilian begomoviruses that infect leguminous hosts. In phylogenetic analysis the virus clustered with bean golden mosaic virus. Recombination events were not detected. We propose the name Macroptilium common mosaic virus (MacCMV) for the virus reported in this study.
Asunto(s)
Begomovirus/genética , Fabaceae/virología , Genoma Viral , Enfermedades de las Plantas/virología , Brasil , ADN Viral/genética , FilogeniaRESUMEN
A high diversity of begomoviruses that infect non-cultivated plants has been noted in Brazil. Here, we report the complete sequences of two new species of bipartite begomoviruses from Sida sp. plants collected in the state of Piauí, northeastern Brazil. The genomes of these viruses show a genomic organization that is typical of New World begomoviruses. In phylogenetic analysis, two closely related viruses (sida angular mosaic virus, SiAMV and sida chlorotic vein virus, SiCVV) clustered with other begomoviruses described in tomato and Sida plants in Brazil. Evidence of recombination is shown among isolates of the species described.
